Module: Kamal::Docker

Extended by:
Docker
Included in:
Docker
Defined in:
lib/kamal/docker.rb

Constant Summary collapse

BUILD_CHECK_TAG =
"kamal-local-build-check"

Instance Method Summary collapse

Instance Method Details

#included_filesObject



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
# File 'lib/kamal/docker.rb', line 8

def included_files
  Tempfile.create do |dockerfile|
    dockerfile.write("      FROM busybox\n      COPY . app\n      WORKDIR app\n      CMD find . -type f | sed \"s|^\\./||\"\n    DOCKERFILE\n    dockerfile.close\n\n    cmd = \"docker buildx build -t=\#{BUILD_CHECK_TAG} -f=\#{dockerfile.path} .\"\n    system(cmd) || raise(\"failed to build check image\")\n  end\n\n  cmd = \"docker run --rm \#{BUILD_CHECK_TAG}\"\n  out, err, status = Open3.capture3(cmd)\n  unless status\n    raise \"failed to run check image:\\n\#{err}\"\n  end\n\n  out.lines.map(&:strip)\nend\n")